Performance of two Askaryan Radio Array stations and first results in the search for ultrahigh energy neutrinos
Ultrahigh energy neutrinos are interesting messenger particles since, if detected, they can transmit exclusive information about ultrahigh energy processes in the Universe. These particles, with energies above 1016 eV, interact very rarely. Therefore, detectors that instrument several gigatons of ma...
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ftunivkansas:oai:kuscholarworks.ku.edu:1808/25221 2023-05-15T18:22:03+02:00 Performance of two Askaryan Radio Array stations and first results in the search for ultrahigh energy neutrinos ARA Collaboration Allison, P. Bard, R. Beatty, J. J. Besson, David Zeke Bora, C. Chen, C. C. Chen, C. H. Chen, P. Chistenson, A. Connolly, A. 2017-10-30T18:58:27Z http://hdl.handle.net/1808/25221 https://doi.org/10.1103/PhysRevD.93.082003 unknown American Physical Society P. Allison et al. (the ARA collaboration). Performance of two Askaryan Radio Array stations and first results in the search for ultrahigh energy neutrinos, 2016. American Physical Society. https://doi.org/10.1103/PhysRevD.93.082003 http://hdl.handle.net/1808/25221 doi:10.1103/PhysRevD.93.082003 © 2016 American Physical Society openAccess Article 2017 ftunivkansas https://doi.org/10.1103/PhysRevD.93.082003 2022-08-26T13:22:25Z Ultrahigh energy neutrinos are interesting messenger particles since, if detected, they can transmit exclusive information about ultrahigh energy processes in the Universe. These particles, with energies above 1016 eV, interact very rarely. Therefore, detectors that instrument several gigatons of matter are needed to discover them. The ARA detector is currently being constructed at the South Pole. It is designed to use the Askaryan effect, the emission of radio waves from neutrino-induced cascades in the South Pole ice, to detect neutrino interactions at very high energies. With antennas distributed among 37 widely separated stations in the ice, such interactions can be observed in a volume of several hundred cubic kilometers. Currently three deep ARA stations are deployed in the ice, of which two have been taking data since the beginning of 2013. In this article, the ARA detector “as built” and calibrations are described. Data reduction methods used to distinguish the rare radio signals from overwhelming backgrounds of thermal and anthropogenic origin are presented. Using data from only two stations over a short exposure time of 10 months, a neutrino flux limit of 1.5 × 10−6 GeV=cm2=s=sr is calculated for a particle energy of 1018 eV, which offers promise for the full ARA detector. Article in Journal/Newspaper South pole The University of Kansas: KU ScholarWorks South Pole Physical Review D 93 8 |
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Ultrahigh energy neutrinos are interesting messenger particles since, if detected, they can transmit exclusive information about ultrahigh energy processes in the Universe. These particles, with energies above 1016 eV, interact very rarely. Therefore, detectors that instrument several gigatons of matter are needed to discover them. The ARA detector is currently being constructed at the South Pole. It is designed to use the Askaryan effect, the emission of radio waves from neutrino-induced cascades in the South Pole ice, to detect neutrino interactions at very high energies. With antennas distributed among 37 widely separated stations in the ice, such interactions can be observed in a volume of several hundred cubic kilometers. Currently three deep ARA stations are deployed in the ice, of which two have been taking data since the beginning of 2013. In this article, the ARA detector “as built” and calibrations are described. Data reduction methods used to distinguish the rare radio signals from overwhelming backgrounds of thermal and anthropogenic origin are presented. Using data from only two stations over a short exposure time of 10 months, a neutrino flux limit of 1.5 × 10−6 GeV=cm2=s=sr is calculated for a particle energy of 1018 eV, which offers promise for the full ARA detector. |
format |
Article in Journal/Newspaper |
author |
ARA Collaboration Allison, P. Bard, R. Beatty, J. J. Besson, David Zeke Bora, C. Chen, C. C. Chen, C. H. Chen, P. Chistenson, A. Connolly, A. |
spellingShingle |
ARA Collaboration Allison, P. Bard, R. Beatty, J. J. Besson, David Zeke Bora, C. Chen, C. C. Chen, C. H. Chen, P. Chistenson, A. Connolly, A. Performance of two Askaryan Radio Array stations and first results in the search for ultrahigh energy neutrinos |
author_facet |
ARA Collaboration Allison, P. Bard, R. Beatty, J. J. Besson, David Zeke Bora, C. Chen, C. C. Chen, C. H. Chen, P. Chistenson, A. Connolly, A. |
author_sort |
ARA Collaboration |
title |
Performance of two Askaryan Radio Array stations and first results in the search for ultrahigh energy neutrinos |
title_short |
Performance of two Askaryan Radio Array stations and first results in the search for ultrahigh energy neutrinos |
title_full |
Performance of two Askaryan Radio Array stations and first results in the search for ultrahigh energy neutrinos |
title_fullStr |
Performance of two Askaryan Radio Array stations and first results in the search for ultrahigh energy neutrinos |
title_full_unstemmed |
Performance of two Askaryan Radio Array stations and first results in the search for ultrahigh energy neutrinos |
title_sort |
performance of two askaryan radio array stations and first results in the search for ultrahigh energy neutrinos |
publisher |
American Physical Society |
publishDate |
2017 |
url |
http://hdl.handle.net/1808/25221 https://doi.org/10.1103/PhysRevD.93.082003 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
P. Allison et al. (the ARA collaboration). Performance of two Askaryan Radio Array stations and first results in the search for ultrahigh energy neutrinos, 2016. American Physical Society. https://doi.org/10.1103/PhysRevD.93.082003 http://hdl.handle.net/1808/25221 doi:10.1103/PhysRevD.93.082003 |
op_rights |
© 2016 American Physical Society openAccess |
op_doi |
https://doi.org/10.1103/PhysRevD.93.082003 |
container_title |
Physical Review D |
container_volume |
93 |
container_issue |
8 |
_version_ |
1766201408814579712 |